As I have said previously even if people are unhappy with the criteria for the 1903 flights - the Wrights 1905 flights were still way ahead of any others !
They certainly were instrumental in bringing in roll control to add to pitch and yaw (over an, initially at least, unstable platform) vis a vis employing natural stability.
Then, it can be argued, development converged ,with the Wrights seeking more natural stability whilst others sought to employ more direct roll control post 1908 .
By around 1912 the balance of the two approaches seems to have matured, to finally allow a fairly maneuverable aircraft to comfortably be flown "hands off".
Enter the B.E. 2
.